On Fri, May 31, 2019 at 09:42:42AM -0300, Marcelo Ricardo Leitner wrote:
> On Thu, May 30, 2019 at 03:56:34PM -0400, Neil Horman wrote:
> > On Thu, May 30, 2019 at 12:17:05PM -0300, Marcelo Ricardo Leitner wrote:
> ...
> > > --- a/net/sctp/sm_sideeffect.c
> > > +++ b/net/sctp/sm_sideeffect.c
> > > @@ -898,6 +898,11 @@ static void sctp_cmd_new_state(struct sctp_cmd_seq *cmds,
> > > asoc->rto_initial;
> > > }
> > >
> > > + if (sctp_state(asoc, ESTABLISHED)) {
> > > + kfree(asoc->peer.cookie);
> > > + asoc->peer.cookie = NULL;
> > > + }
> > > +
> > Not sure I follow why this is needed. It doesn't hurt anything of course, but
> > if we're freeing in sctp_association_free, we don't need to duplicate the
> > operation here, do we?
>
> This one would be to avoid storing the cookie throughout the entire
> association lifetime, as the cookie is only needed during the
> handshake.
> While the free in sctp_association_free will handle the freeing in
> case the association never enters established state.
>
Ok, I see we do that with the peer_random and other allocated values as well
when they are no longer needed, but ew, I hate freeing in multiple places like
that. I'll fix this up on monday, but I wonder if we can't consolidate that
somehow
Neil
> > > if (sctp_state(asoc, ESTABLISHED) ||
> > > sctp_state(asoc, CLOSED) ||
> > > sctp_state(asoc, SHUTDOWN_RECEIVED)) {
> > >
> > > Also untested, just sharing the idea.
> > >
> > > Marcelo
> > >
>
